Re: CMI8768 patch, softvol mixer slider

[thomas schorpp <t.schorpp@gmx.de>]

Tien, C.L. - 田承禮 wrote:
> Hi,
> 
> I made a patch for CM8768, which has the same PCI ID but there are
> several HW diffecece, aas listed:
> 
> 1. 8768 has no PCM volume control.
> 2. The ADC of 8768 can only record in 44.1kHz or 48kHz.
> 3. 8768 can support up to 8 channels.
> 
> I made change for item 2 and 3, I want to use the softvol plugin but
> don't know how to. The driver just don't generate the PCM volume slider
>  for now.

hmm, if read the docs right its userspace.

how about getting it in the kernel and calling it snd_x_csoftmix ?

heres a plugin builder PCM_PLUGIN_H

softvol from userpaces lib adapted implemented in ../core/oss/softvol.c
then?

and we would need a control definition used then by snd_ctl_new1()

the mixer build() s must determine then between real and soft controls...

> 
> The patch file is attached.
> 
> Sincerely,
> ChenLi Tien
> 
> 



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